Double Action VS Single Action OTF knife , which is better ?

Double action and single action OTF (out-the-front) knives both have their own advantages and disadvantages, and which one is "better" depends on your specific needs and preferences.

A double-action OTF knife typically allows the blade to be deployed and retracted with a single button or switch. This can be convenient for quick deployment, especially in emergency situations. However, some users may find the double-action mechanism more complex or less intuitive to operate.

A single-action OTF knife, on the other hand, usually requires a separate action to deploy and retract the blade. This may involve pushing a button to deploy the blade and pulling back on the handle or using a thumb slide to retract it. While this may require a bit more effort, some users prefer the simplicity and familiarity of this type of mechanism.

Other factors to consider include the durability and reliability of the knife, the quality of the materials used, the weight and balance of the knife, and its intended use. For example, if you need a knife for tactical or self-defense purposes, you may prefer a double-action OTF knife for its quick deployment capabilities. On the other hand, if you're looking for a knife for everyday carry or utility tasks, a single-action OTF knife may be a better choice due to its simplicity and ease of use.

Ultimately, the best OTF knife for you is the one that meets your specific needs and preferences in terms of functionality, ease of use, and durability. It's always a good idea to do some research and read reviews from other users to help you make a decision.